Tube clamping and carrying device



Dec. 25, 1934. P. B. ABRAMSEN TUBE CLAMPING AND CARRYING DEVICE OriginalFiled March 5. 1950 INVENTOR a 2 2 2 5 i 2 HA1. 4 i w .0 0 6 a Z 6 3/ 27 V a n w d L Q0 5 I w l 2 4 0 7% Patented Dec. 25, 1934 UNITED STATESPATENT OFFICE Application March 5, 1930, Serial No. 433,314 Renewed May9, 1934 7 Claims.

The present invention relates to a tube clamping and carrying device andto its adaptation to and use in the art of cross rolling andstraightening of tubes or rounds.

In the art of cross rolling and straightening of tubes, unless propertube clamping means is provided offset portions are formed in the tubesbeing rolled. This is due to the fact that where no such means isprovided the tube entering the mill is free to swing sidewise orvertically and is not confined to axial movement. It is the object of myinvention to provide means whereby the tube upon entering the mill isrestrained from movement other than axial movement, thereby preventingthe formation of offset portions in the tube being rolled.

In the accompanying drawing there is shown for purposes of illustrationonly a preferred embodiment of my invention.

In the drawing:

Figure 1 is a side elevational view of the tube clamping and carryingdevice which I provide.

Figure 2 is a sectional view taken along the line II-II of Figure 1.

Figure 3 is a diagrammatic sketch showing the tube clamping and carryingdevice which I provide in connection with cross rolls.

In the embodiment of my invention illustrated in the drawing there isshown a main body 2, having an integral upwardly and sidewise extendingarm 3.

The body 2 has spatially located bearings 6 therein by which shafts aresupported, and on these shafts are mounted rollers l, which are adaptedto support the tube 21.

An arm 7 is pivotally attached by means of the pivot 8 to the arm 3 at apoint intermediate the ends of each of these arms. The arm 7 has acurved portion 9. The roller 10 is located on a shaft 11 resting inbearings 12 on the arm 7. On the other end of the arm 7 is located asleeve 13 having a threaded opening 14 therethrough. This threadedsleeve is attached to the arm 8 by means of pivots 15.

On the upper end of the integral arm 3 is located a sleeve 16 similar tothe sleeve 13 and having a threaded opening 17 therethrough. This sleeveis attached to the arm 3 by means of pivots 18. A wheel or disc 19,having a threaded shaft 20 thereon, is provided and adapted to cooperatewith the threaded openings of the cylindrical sections 13 and 16. Theshaft 20 has two separate threaded sections thereon, these sectionsbeing threaded oppositely. When the wheel 19 is rotated, the arm 7 andthe roller 10 thereon are caused to be raised or lowered and broughtinto or out of clamping relationship with the rollers 4.

The body 2 is mountedfor movement along, rails, it being provided withshafts 22 having wheels 23 thereon, these wheels having concave rims 24thereon. Rails or rounds 25 are provided on which the concave rims ofthe Wheels engage, thus providing a guideway along which the body 2 maybe moved. The rails are supported at each end by means of standards 26.Four rails 25 instead of only two are provided in order to preventtipping of the clamping and carrying means when it has a tube thereon.

The clamping and carrying device which I have heretofore described canbe used to carry the tube to be rolled up to the cross rolls 27 andafter the tube has engaged the rolls it will permit axial movement ofthe tube, but will restrain it against any other movement. Due to thisrestraint placed upon the tube after it has been engaged by the crossrolls, proper alignment of the tube is always maintained and theformation of offset portions in the tube thereby prevented.

While I have described a preferred embodiment of my invention, it is notlimited thereto, as changes in constructional characteristics can bemade without departure from the spirit thereof.

I claim:

1. A clamping and carrying device comprising a movable body having anupwardly and sidewise extending arm thereon, rotatable means on saidbody for supporting a tube or round, a second arm pivotally mounted onthe first recited arm and having rotatable means attached on one endthereof and means carried by said arms for moving said pivotallyattached arm and the rotatable means thereon into and out of clampingrelationship relative to said supporting means.

2. A clamping and carrying device comprising a movable body having anupwardly and sidewise extending arm thereon, rotatable means on the bodyfor supporting a tube or round, a second arm pivotally mounted on thefirst recited arm and having a roller attached on one end thereof, androtatable means mounted on said arms for bringing said pivotallyattached arm and the roller thereon into clamping relationship with saidsupporting means.

3. A clamping and carrying device comprising a movable body having anupwardly and sidewise extending arm thereon having a threaded sleevepivotally attached to the end thereof, rotatable means on the body forsupporting a tube or round, a second arm pivotally attached intermediatethe ends thereof to the first recited arm and having rotatable meansattached on one end thereof, a pivotally attached threaded sleeve on theother end of said arm and a disc or wheel having a threaded shaftthereon adapted to cooperate with the pivotally mounted threaded sleeveswhereby the pivotally attached arm and the rotatable means thereon arebrought into clamping relationship with the supporting means.

'4. The combination with a cross rolling mill of a clamping and carryingdevice comprising a movable body having an upwardly and sidewiseextending arm thereon, rollers attached to said body and spaced relativeto each other for supporting a tube or round, a second arm pivotallymounted on the first mentioned arm and having a roller attached on oneend thereof and means for bringing said pivotally attached arm and theroller thereon into clamping relationship with the said supporting meanswhereby all but axial movement and axial rotation of the tube or roundis prevented.

5. In combination with a cross rolling mill, a

clamping and carrying device comprising a movable body having anupwardly and sidewise extending arm thereon, rollers on said body andspaced relative to each other, a second arm pivotally mounted on thefirst mentioned arm and having a roller on one end thereof, androtatable means carried by said arms adapted to move said arm and theroller thereon into clamping relationship with the rollers on said body.

6. In combination with a cross rolling mill, a clamping and carryingdevice comprising a movable body, a plurality of rollers mounted on saidbody spaced relatively to each other, a pivotally mounted arm having aroller on one end thereof, and means for moving the rollers intoclamping relationship for restraining a tube or round placed on saidbody against all but axial movement and axial rotation.

7. In combination, a cross rolling mill having a plurality of crossrolls, a guideway, a carriage mounted on said guideway and adapted formovement thereon, rollers on said carriage for supporting a tube orround, and means including a roller for engaging and clamping the tubeor round on the carriage and against all but axial movement and axialrotation as it enters the mill.

PETTER B. ABRAMSEN.

